switching between wacom and mouse
On Windows and Mac, the Control Panel for wacom in the operating system allows you to set the behavior for different applications, both for the pen buttons and the touch strip. Create a setting for blender and just remap your buttons to do what you need. 



Other trick I use is enable Emulate 3 Button Mouse That way clicking and dragging the pen while holding Alt key I can rotate the view.
CtrlAlt to zoom in and out. ShiftAlt to move sideways and up down. I've never used the mouse in blender at all...



For linux it is also possible to remap the buttons settings, but the changes are system-wide, not for specific applications.